CH202248A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH202248A CH202248A CH202248DA CH202248A CH 202248 A CH202248 A CH 202248A CH 202248D A CH202248D A CH 202248DA CH 202248 A CH202248 A CH 202248A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- preparation
- red
- blue
- dye
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- LOCWBQIWHWIRGN-UHFFFAOYSA-N 2-chloro-4-nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1Cl LOCWBQIWHWIRGN-UHFFFAOYSA-N 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 150000001447 alkali salts Chemical class 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 125000000664 diazo group Chemical class [N-]=[N+]=[*] 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man die Diazover- bindung des 1-Amino-2-chlor-4-nitrobenzols mit @-N-(Äthylaminobenzol)-propionsäure ver einigt. Der erhaltene Farbstoff bildet ein rotes Pulver und löst sich, wenn er in Form eines Alkalisalzes vorliegt, in Wasser mit blauroter Farbe. Er färbt Acetatkunstseide aus wässeriger Lesung in echten blauroten Tönen.
<I>Beispiel:</I> 17,4 Teile 1-Amino-2-chlor-4-nitrobenzol werden auf übliche Weise diazotiert. Diese Diazolösung lässt man langsam zu 19,3 Teilen ss-N-(Äthylaminobenzol)-propionsäure in Was ser gelöst zutropfen und stumpf mit der be rechneten Menge Natriumacetat ab. Der aus geschiedene Farbstoff wird abgenutsoht und nochmals in Wasser angeschwemmt und mit Ammoniak schwach alkalisch gestellt. Der Farbstoff wird mit wenig Salz ausgesalzen, abgenutscht und bei 50-60 getrocknet.
Process for the preparation of an azo dye. It has been found that a new azo dye is obtained if the diazo compound of 1-amino-2-chloro-4-nitrobenzene is combined with @ -N- (ethylaminobenzene) propionic acid. The dye obtained forms a red powder and, if it is in the form of an alkali salt, dissolves in water with a blue-red color. He dyes acetate silk from aqueous reading in real blue-red tones.
<I> Example: </I> 17.4 parts of 1-amino-2-chloro-4-nitrobenzene are diazotized in the usual way. This diazo solution is slowly added dropwise to 19.3 parts of ß-N- (ethylaminobenzene) propionic acid dissolved in water and bluntly with the calculated amount of sodium acetate. The dyestuff separated out is sucked off and washed again in water and made weakly alkaline with ammonia. The dye is salted out with a little salt, suction filtered and dried at 50-60.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH202248T | 1937-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH202248A true CH202248A (en) | 1939-01-15 |
Family
ID=4443163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH202248D CH202248A (en) | 1937-07-10 | 1937-07-10 | Process for the preparation of an azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH202248A (en) |
-
1937
- 1937-07-10 CH CH202248D patent/CH202248A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH202248A (en) | Process for the preparation of an azo dye. | |
| CH205808A (en) | Process for the preparation of an azo dye. | |
| CH205811A (en) | Process for the preparation of an azo dye. | |
| CH205809A (en) | Process for the preparation of an azo dye. | |
| CH205810A (en) | Process for the preparation of an azo dye. | |
| CH194363A (en) | Process for the production of a new azo dye. | |
| CH165040A (en) | Process for the production of a new azo dye. | |
| CH204443A (en) | Process for the production of a new azo dye. | |
| CH203606A (en) | Process for the production of a new azo dye. | |
| CH229358A (en) | Process for the preparation of a trisazo dye. | |
| CH183455A (en) | Process for the preparation of an azo dye. | |
| CH211825A (en) | Process for the preparation of an azo dye. | |
| CH174519A (en) | Process for the production of a new azo dye. | |
| CH169700A (en) | Process for the production of a new azo dye. | |
| CH153829A (en) | Process for the production of a new metal-containing dye. | |
| CH163008A (en) | Process for the production of a new azo dye. | |
| CH165415A (en) | Process for the production of a new azo dye. | |
| CH202743A (en) | Process for the preparation of an azo dye. | |
| CH202749A (en) | Process for the preparation of an azo dye. | |
| CH210494A (en) | Process for the preparation of a water-soluble azo dye. | |
| CH212118A (en) | Process for the production of a new dye. | |
| CH171233A (en) | Process for the production of a new azo dye. | |
| CH187020A (en) | Process for the preparation of an azo dye. | |
| CH189801A (en) | Process for the production of a new azo dye. | |
| CH165039A (en) | Process for the production of a new azo dye. |